Re: [linux-audio-dev] 64 bit float or integer

New Message Reply About this list Date view Thread view Subject view Author view Other groups

Subject: Re: [linux-audio-dev] 64 bit float or integer
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Mon May 21 2001 - 17:28:31 EEST

On Mon, May 21, 2001 at 12:05:56PM -0000, Stefan Nitschke wrote:
> that's right. Anyway who cares for the LSB?
> Show me a 16bit A/D converter that has useful information in the LSB. Ok,
> for D/A it could but do you hear the difference?

Um, well its not just an issue of loosing one bit:

Input signal

             /
            /
           /
          /
---------/-----------
        /
       /
      /
     /

Output signal
              /
             /
            /
           /
--------===----------
       /
      /
     /
    /

Also, imagine an all digital delay loop:
        _________ __________
        | / | | |
 ------>| (/) |-------| -1 dB |---------->
   | |__/____| |________| |
   | |
   '----------------<----------------'

Very soon you have a very distored signal with no DR.

- Steve

New Message Reply About this list Date view Thread view Subject view Author view Other groups

This archive was generated by hypermail 2b28 : Mon May 21 2001 - 16:55:48 EEST